Mozilla Firefox is good, but since v4, it started consuming my CPU insanely. I tried to charge it with couple of tricks, but still the CPU consumption was making me mad. atlast, I only had 1 options, Opera ! Because its a feature rich browser. Customization is really what I enjoy. I can shift toolbars, panels, etc anywhere i want. Now with extensions, its has left a deep scratch on others in the competition.The only problem with Opera is that it isn't widely accepted. Websites provide compatibility to other browsers first and forgets about Opera in the end.